Exit sign housing



FIG. 1 is a top left perspective view of an exit sign housing, showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a top plan view;

FIG. 6 is a right side elevational view; and,

FIG. 7 is a rear elevational view, thereof. 

The ornamental design for an exit sign housing, as shown. 